Revert of Remove various IDs

modules/audio_coding/include/audio_coding_module.h

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 52 matching lines @@
 class AudioCodingModule {
  protected:
   AudioCodingModule() {}
 
  public:
   struct Config {
     Config();
     Config(const Config&);
     ~Config();
 
+    int id;
     NetEq::Config neteq_config;
     Clock* clock;
     rtc::scoped_refptr<AudioDecoderFactory> decoder_factory;
   };
 
   ///////////////////////////////////////////////////////////////////////////
   // Creation and destruction of a ACM.
   //
   // The second method is used for testing where a simulated clock can be
   // injected into ACM. ACM will take the ownership of the object clock and
   // delete it when destroyed.
   //
-  static AudioCodingModule* Create();
-  static AudioCodingModule* Create(Clock* clock);
+  static AudioCodingModule* Create(int id);
+  static AudioCodingModule* Create(int id, Clock* clock);
   static AudioCodingModule* Create(const Config& config);
   virtual ~AudioCodingModule() = default;
 
   ///////////////////////////////////////////////////////////////////////////
   //   Utility functions
   //
 
   ///////////////////////////////////////////////////////////////////////////
   // uint8_t NumberOfCodecs()
   // Returns number of supported codecs.
@@ skipping 725 matching lines @@
 
   virtual void GetDecodingCallStatistics(
       AudioDecodingCallStats* call_stats) const = 0;
 
   virtual ANAStats GetANAStats() const = 0;
 };
 
 }  // namespace webrtc
 
 #endif  // MODULES_AUDIO_CODING_INCLUDE_AUDIO_CODING_MODULE_H_